Bone Densitometry, also known as DEXA, uses low dosage x-ray to
produce images of the spine and hip, the two areas where
osteoporotic fractures most frequently occur. Following the
x-ray, a computer calculates the amount of bone mineral
Before Your Bone Scan
If possible, please wear pants with an elastic waist and no
zipper or metal. Belt buckles, metal or thick plastic buttons,
and metal jewelry will also need to be removed from the area
being examined. In order to get an accurate reading, do not
take calcium supplements or vitamin and mineral tablets for 24
hours prior to your exam.
Time Required for Your Bone Scan
Bone scans generally last 5-10 minutes.
Who Performs Your Bone Scan
A Registered Radiologic Technologist will perform your exam.
During Your Bone Scan
Prior to the exam, your name, age, height, weight and ethnicity
will be entered into the computer. This information is used to
compare your results to a normal reference group. During the
scan, you will lie on your back on the bone densitometer's
large padded table. The technologist will position your arms
and legs and ask you to lay still and breathe normally
throughout the scan.
After Your Bone Scan
The images and data from your scan will be sent to a
rheumatologist for interpretation. Your physician will then
receive a report of the rheumatologist's findings, typically
within a week.